Hierarchy/Derived subclasses
44 / 550 | -> 551 | -> 552 | |
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-> 559 | -> 560 | ||
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-> 564 | -> 565 | ||
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-> 580 |
uspto searches
Patent Apps in 44/551Granted Patents in 44/551
Use the links above or do an advanced search in ppubs for:
(44/551.ccls. or 44/552.ccls. or 44/553.ccls. or 44/554.ccls. or 44/555.ccls. or 44/556.ccls. or 44/557.ccls. or 44/558.ccls. or 44/559.ccls. or 44/560.ccls. or 44/561.ccls. or 44/562.ccls. or 44/563.ccls. or 44/564.ccls. or 44/565.ccls. or 44/566.ccls. or 44/567.ccls. or 44/568.ccls. or 44/569.ccls. or 44/570.ccls. or 44/571.ccls. or 44/572.ccls. or 44/573.ccls. or 44/574.ccls. or 44/575.ccls. or 44/576.ccls. or 44/577.ccls. or 44/578.ccls. or 44/579.ccls. or 44/580.ccls.)
This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.